# pyramid
# Vertices, x y z
v 0.0 1.0 0.0
v -1.0 0.0 -1.0
v 1.0 0.0 -1.0
v 1.0 0.0 1.0
v -1.0 0.0 1.0
# Faces
# Four sides
f 1 2 3
f 1 
f 1      
f 1 3  4
f 1 4 5
f 1  5 2
# Square underside, two triangles
f 3 2 4
f 2 5 4
